Bag body with fitting tool

Abstract

The fitting tool ( 10 ) includes a first fitting member ( 12 ) that includes a first fitting part ( 18 ) provided on a strip-shaped first base material ( 16 ) in a longitudinal direction of the first fitting member, and a second fitting member ( 14 ) that includes a second fitting part ( 22 ) provided on a strip-shaped second base material ( 20 ) in a longitudinal direction of the second fitting member and is detachably fitted to the first fitting part, the first base material and the second base material each includes an extension part ( 13, 17 ) that extends from a first end part ( 16 c, 20 c ) in a width direction of the first base material and the second base material to an outer surface side opposite to a facing surface ( 16 a, 20 a ), on which the first fitting part or the second fitting part is provided, the extension part facing to the outer surface ( 16 d, 20 d ), and a second end part on a side opposite to the first end part is separately arranged from the extension part.

The invention claimed is: 
     
       1. A bag body with a fitting tool comprising:
 a bag main body which includes a storage portion for storing contents, a first film material including a first edge portion adjacent an opening of the bag main body and a second film material including a second edge portion adjacent the opening of the bag main body; and 
 the fitting tool attached to an inner surface of the bag main body in a vicinity of the opening portion of the bag main body, 
 wherein the fitting tool comprises:
 a first base material and a second base material which have a strip-shape; 
 a first fitting part provided on the first base material in a longitudinal direction of a first fitting member; 
 a second fitting part provided on the second base material in a longitudinal direction of a second fitting member, the second fitting part being detachably fitted to the first fitting part; 
 a first extension part that extends from a first end part in a width direction of the first base material toward an outer surface side opposite to a first facing surface, on which the first fitting part is provided, the first extension part facing to the outer surface of the first base material; 
 a second extension part that extends from a first end part in a width direction of the second base material toward an outer surface side opposite to a second facing surface, on which the second fitting part is provided, the second extension part facing to the outer surface of the second base material; 
 a first folded portion folded at a boundary part between the first extension part and the first base material; 
 a second folded portion folded at a boundary part between the second extension part and the second base material, 
 
 wherein in each of the first base material and the second base material, a second end part is located on a side opposite to the first end part and is separated from each of the first extension part and the second extension part, 
 wherein at least a part of the first extension part and at least a part of the second extension part are fixed to the inner surface of the bag main body, 
 wherein each of the second end part is provided on an opening portion side of the bag main body with respect to the first end part, 
 wherein, in a first state, the first fitting part and the second fitting part are detachably fitted, a first extension end of the first extension part and a second extension end of the second extension part are spaced apart a first distance, and a first angle is formed by the first base material and the first extension part at the first folded portion and a first angle is formed by the second base material and the second extension part at the second folded portion, and 
 wherein, in a second state, the first fitting part and the second fitting part are detachably fitted, the first extension end of the first extension part and the second extension end of the second extension part are spaced apart a second distance greater than the first distance, and a second angle is formed by the first base material and the first extension part at the first folded portion that is greater than the first angle formed in the first state by the first base material and the first extension part at the first folded portion and a second angle is formed by the second base material and the second extension part at the second folded portion that is greater than the first angle formed by the second base material and the second extension part at the second folded portion in the first state; and 
 in the first state and in the second state, the second end parts in the first and second base materials are positioned between the first and second fitting parts and the opening portion of the bag main body in the width direction of the first base material and the second base material. 
 
     
     
       2. The bag body with the fitting tool according to  claim 1 ,
 wherein the first extension part and the second extension part extend toward the opening portion side with respect to the second end parts, 
 the first extension end of the first extension part and the second extension end of the second extension part are fixed to the inner surface of the bag main body, 
 regions other than the first extension end and the second extension end of the fitting tool are separated from the inner surface of the bag main body, and 
 the first end parts of the fitting tool are separable from the inner surface of the bag main body. 
 
     
     
       3. The bag body with the fitting tool according to  claim 1 , wherein the first extension is welded to the main bag body. 
     
     
       4. The bag body with the fitting tool according to  claim 1 , wherein the second extension is welded to the main bag body. 
     
     
       5. The bag body with the fitting tool according to  claim 1 , wherein the at least a part of the first extension part is fixed to the first film material below the first edge portion of the first film material and at least a part of the second extension part is fixed to the second film material below the second edge portion.